These bags are made from 1.25 mil polypropylene (not cello grade) and are available in mini-packs of 25 or cartons of 100. BasketBags™ have a slightly softer feel than cello film but good body and support like cello. BasketBags™ are heat sealable, but do not shrink. Available in several popular sizes. BasketBags™ have a bottom gusset.